.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 50px;
  background-color: #fff;
  border-bottom: 1px solid #eee;
  display: flex;
  align-items: center;
  padding: 0 10px;
  z-index: 994;
}

.back-icon {
  flex-shrink: 0;
  width: 20px;
  height: 28px;
  margin-right: 5px;
  display: flex;
  align-items: center;
  margin-right: 15px;
}

.back-icon>img {
  transform: rotateZ(90deg);
}

.author-container {
  flex: 1;
  display: flex;
  align-items: center;
}

.head {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  overflow: hidden;
  margin-right: 5px;
  flex-shrink: 0;
}

.author-nickname {
  font-size: 14px;
  font-weight: 700;
  flex: 1;
  color: black;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 20px;
}

.attention {
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.is-attention,
.no-attention {
  padding: 6px 15px;
  border-radius: 999px;

}

.is-attention {
  background-color: rgba(0, 0, 0, .2);
}

.no-attention {
  background-color: #00AE7D;
}

.right-icon {
  width: 30px;
  height: 40px;
}

.right-icon>img {
  width: 100%;
  height: 100%;
}